Finger-ring.



Patented Sept. ll, I900.

G. KAUTZMANN.

Fl N G E B R l N G (Application filed Apr. 29, I899.)

(No Model.)

WITNESSES: INVENTOR QW W.

WM W

ATTORNEYS Urrnn STATES PATENT OFFICE.

GOTTLOB KAUTZMANN, OF NEWVARK, NEW JERSEY.

FINGER-RING.

SPECIFICATION forming part of Letters Patent N 0. 657,776, datedSeptember 11, 1900.

Application filed April 29, 1899.

To all whom, it may concern:

Be it known that I, GOTTLOB KAUTZMANN, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey,haveinvented certain new and useful Im provementsin Finger-Rings; andIdohereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being badto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

The objects of this invention are to enable a finger-ring to be made ofthin and light material and yet with an appearance of solidity andweight, to obtain such a construction which shall present no sharp edgesto hurt or cut the finger of the wearer, to form a wide opening at theinside of the ring at the jewel head or enlargement, such as will permita free access of light-rays to the back of the stone, and thus givegreater brilliancy to said stone when the ring is on exhibition, toavoid the use of back plates in the hollow jewelhead, such as have beenheretofore employed and made of inferior metal, and thus giving to thepurchaser of my improvements the knowledge that the head is not filledwith base metal, to avoid the use of a plurality of pieces and reducethe soldering operations in the construction of the ring and theconsequent admixture of base metal therewith, and to secure otheradvantages and results, some of which may be referred to hereinafter inconnection with the description of the working parts.

The invention consists in the improved finger-ring and in thearrangements and combinations of parts of the same, all substantially aswill be hereinafter set forth, and finally embraced in the claim.

Referring to the accompanying drawings, in which like letters ofreference indicate corresponding parts in each of the several views,Figure 1 is a perspective View of a ring of my improved construction.Fig. 2 is a plan of the blank from which the ring is formed, and Fig. 3is an edge view of the same. Fig. a is a reverse plan of the blank afterit has been swaged and bent, and Fig. 5 is a section of the same on linein. Fig. 6 is a reverse plan Serial No. 714,935. (No model.)

of the blank after certain edges have been rolled inward, and Figs. 7and 8 are sectional views of the same on line y, Fig. 6, and line 2,Fig. 7, respectively.

In said drawings, a indicates the blank out of which I form my improvedring, said blank consisting of a strip of suitable metal widened at itsmiddle part, as at a. This widened central portion is ofsubstantiallyuniform thickness with square edges; but the ends a of theblank are rounded at the upper surface, so as to be convex incross-section, with thin edges. Said ends are thus in proper conditionto form the band portion or shank b of the ring,an'd the operationshereinafter described are mainly to give the desired form to the centralpart a of the blank, whereby it may constitute the enlarged portion 1)of the finished ring.

In the first operation the blank 0, is by swaging bent into a V shapewith rounded bend, as shown in Fig. 5, the middle portion a at the sametime being rounded on its upper surface and having its edges forced orpressed downward to form deep flanges d at the sides. This swagingoperation leaves the bend d of the partially-completed ring thicker inthe middle than at the edges in cross-sectional view, as shown in Fig.8, the met-a1 at and near the edges having been forced down into theflange d.

The next step in the manufacture of the ring consists in rolling thethin edges of the flanges d inwardly, as shown more particularly in Fig.8, this being done by suitable dies in any manner common in the art.Said inwardly-rolled edges epresent smooth roun ded contact-surface t0the finger of the wearer, and I thus secure a light hollow enlargement bon the ring without the objectionable irritation or injury due to sharpedges. The ends a of the blank in its V-shaped form are then bent towardeach other around a suitable former into the shape of a circle and areout off at the required length and jointed by soldering or any othermeans common to the art. The ring may now be finished and pol ished asdesired, the enlarged portion 1) being chased or ornamented with stonesaccording to the taste.

It will be understood that the cross-sectional shape of the ends a ofthe blank a may be Varied at will to produce diiferent styles of theshank b in the ring, and,furthermore, by altering the middle widenedportion a of the blank or by using different swages in operating on saidblank the enlarged portion I) of the ring may be modified withoutdeparting from the spirit or scope of the invention.

The head or enlarged portion 12, in which the jewels are ordinarily set,at the inside presents a large open recess, permitting a free access oflight. to the rear of the stone or jewel when the same is set therein,and thus when the said jewel is thus set and the ring is placed onexhibition in the store of the j eweler the said stone is given greaterbrilliancy than if set so that the back is covered with Opaque metal orin a deep perforation such as would be formed in a tube-section.

As will be clearly seen upon examination of Fig.8, the inwardly-curlededges do not extend entirely around the inside of the ring, but extendonly at the sides of the jewel head or enlargement, and to secure aproper finish and prevent the formation of shoulders or projections uponthe inside of the ring,

such as might be uncomfortable to the finger, I have graduated the curlsso that at the ends of the jewel head or enlargement they terminate bygradual reduction in diameter and are worked oif into the flat orotherwise unrecessed metal at the small part or shank of the ring, andat the center of said jewel-head the curls are of increased diameter, soas to give a larger rounding where the curls are far apart to permit afree in-passage of light and where the recess between the curls is thedeepest.

Having thus described the invention, what I claim as new is The improvedfinger-ring herein described, having a portion forming an arc of itsaircumference pressed outward beyond the line of the circle in the formof a crescent in crosssection, said pressed-out portion being thickestin the middle and gradually becoming thinner toward each edge incross-section, and diminishing in width from the middle toward each end,the opposite thin edges being rolled inward and forming curls decreasingin diameter from the middle toward each end and merging at said endsinto the plain shank, whereby the ring is provided with an apparentlymassive enlargement at one side which is in reality hollow andpermanently open toward the finger of the wearer, substantially as setforth.

In testimony that I claim the foregoing l have hereunto set my hand this26th day of April, 1899.

GOTTLOB KAUTZMANN. Witnesses:

CHARLES H. PELL, C. B. PITNEY.

